Hydrogen peroxide formulations in barrier layer films with a metallized layer

ABSTRACT

The present disclosure concerns a cosmetic product for modifying the natural color of keratinous fibers, in particular human hair, comprising at least one packaging (VP) and a cosmetic composition (KM) contained in this packaging (VP). The packaging is made of a multi-layer film (F) comprising at least two polymer layers (P1) and (P2) and at least one barrier layer (BS). The cosmetic composition comprises at least one oxidizing agent, at least one C 8 -C 30  alcohol, at least one anionic surfactant and at least one non-ionic surfactant. The use of the packaging (VP) in combination with the cosmetic composition (KM) does surprisingly not lead to a swelling of the packaging or excessive water loss of the composition (KM) during storage.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a U.S. National-Stage entry under 35 U.S.C. § 371based on International Application No. PCT/EP2018/079786, filed Oct. 31,2018, which was published under PCT Article 21(2) and which claimspriority to German Application No. 10 2017 223 029.0, filed Dec. 18,2017, which are all hereby incorporated in their entirety by reference.

TECHNICAL FIELD

The present disclosure is in the field of cosmetics and relates to aproduct for oxidative color change of keratinous fibers, in particularhuman hair, comprising an oxidant-containing composition packaged in apackaging. The oxidant-containing composition comprises at least oneC₈-C₃₀ alcohol, at least one non-ionic surfactant and at least oneanionic surfactant. The packaging is manufactured from a specialmulti-layer film composite system, the wall of which comprises at leasttwo polymeric layers and a barrier layer. The barrier layer has apermeation barrier effect for gases and water vapor. The barrier layercomprises a metal.

BACKGROUND

Changing the color of keratinous fibers, especially hair, is animportant area of modern cosmetics. The appearance of the hair may beadapted to current fashion trends as well as to the individual wishes ofeach person. The expert knows various methods for changing the color ofhair. The hair color may be changed temporarily by using direct dyes. Inthis process, already formed dyes diffuse from the dye into the hairfiber. Dyeing with direct dyes is associated with a low level of hairdamage, but a disadvantage is the low durability and the fastwashability of the colorations obtained with direct dyes.

If the consumer desires a long-lasting color result or a color shadethat is lighter than the original hair color, oxidative color modifiersare usually used. For permanent, intensive colorations withcorresponding fastness properties, so-called oxidative colorants areused. Such dyes usually contain oxidative colorant precursors, so-calleddeveloper components and coupler components, which form the actual dyesunder the influence of oxidants—usually hydrogen peroxides. Oxidativecolorants are exemplified by excellent, long-lasting dyeing results.

Oxidative color modifiers are usually marketed in the form oftwo-component agents, in which two different compositions are separatelypackaged in two separate packagings and are not mixed together untilshortly before use. The first composition is a formulation—usuallyacidic for stability reasons—which contains, for example, hydrogenperoxide in concentrations of from about 1.5 to about 12% by weight asan oxidizing agent. The oxidizing agent formulation is usually in theform of an emulsion or dispersion and is usually provided in a plasticbottle with a resealable outlet opening (developer bottle).

This oxidizing agent formulation is mixed with a second compositionbefore use. This second composition is an alkaline formulation which isoften in the form of a cream or a gel and which, if a color change isdesired at the same time as the brightening, also contains at least oneoxidative colorant precursor. This second composition may, for example,be provided in the form of a tube or in the form of a plastic or glasscontainer.

In the usual application form described above, the second composition,which contains the alkalizing agent and/or the oxidative colorantprecursors, is transferred from the tube or container into the developerbottle and then mixed by shaking with the hydrogen peroxide compositionalready in the developer bottle. In this way, the application mixture isprepared in the developer bottle. Application to the hair is thencarried out via a small spout or outlet opening at the top of thedeveloper bottle. The spout or outlet opening is opened after shakingand the application mixture may be removed by pressing the flexibledeveloper bottle.

The use of the developer bottle requires a certain routine from theuser, so that some users prefer to prepare the application mixture in amixing bowl and apply it with a brush.

When preparing the application mixture in a bowl, both components—thefirst composition containing the oxidizing agent and the secondcomposition containing an alkalizing agent and/or oxidative colorantprecursors—are completely transferred into a bowl or similar vessel andstirred there, for example with the aid of a brush. The applicationmixture is then removed from the mixing bowl using the brush. With thisform of application, the use of a voluminous and expensive developerbottle is not necessary, and the search continues for inexpensive andmaterial-saving packaging forms for the oxidizing agent composition.

In this context, packaging in pocket or bag form, which is usually madeof plastic films or metal foils, is an inexpensive form of packagingwith low material consumption.

Such packaging may be produced, for example, by gluing or hot pressingtwo plastic foils lying one on top of the other, with the gluing takingplace on all edges of the foils. The interior of the packaging (i.e. theplastic bag) created by the bonding may then be filled with the desiredcosmetic composition. The packaging may be opened by tearing or cuttingopen the plastic bag.

However, filling oxidizing agent compositions into such packaging isassociated with problems caused by the reactivity of the oxidizingagent. Oxidizing agents are highly reactive substances which—dependingon the storage conditions and the presence of decomposingimpurities—decompose in small amounts and produce oxygen (i.e. gas).

The developer bottles known from the state of the art are usually onlyfilled with the oxidizing agent composition to a maximum of half,usually only to a third of their internal volume. As a rule, developerbottles are made of polyethylene. Since polyethylene is permeable toboth water vapor and other gases, there is no or only very slight excesspressure in the developer bottle. In addition, developer bottles areusually provided with strong, thick walls and a sturdy screw cap, sothat the diffusion of water vapor or gases through the thickness of thewalls is reduced and a slight increase in pressure within the bottle hasno negative effects.

In contrast, bag-shaped packaging is usually completely filled with theliquid composition, and there is practically no excess air space in thefilled bag. In addition, such packaging should be flexible, and whenopened (e.g. torn open or cut open) there should be no uncontrolledescape of the composition. For this reason, when packaging liquidcompositions, the creation of excess pressure in the package should beavoided if possible.

If an oxidizing agent composition is in such packaging, the gas (oxygen)produced during storage may cause the package to expand. Since the edgesof the package are usually only glued together, in the worst case,strong inflation may lead to bursting of the packaging. For thesereasons, when storing oxidizing agent-containing compositions, thechoice of the film material of which the packaging is made is of greatimportance.

Packaging made of pure plastic such as polyethylene or polypropylene ispermeable to both water vapor and gases. When storing a compositioncontaining oxidizing agents in polyethylene or polypropylene packaging,the packaging does not expand. Due to the high permeability of thecomparatively thin film of the packaging to water vapor, however, thewater content of the composition is reduced. If the composition isstored in the packaging for several weeks or months, the water lossexceeds the maximum value permitted for adequate storage stability.

The production of suitable packaging for formulations containinghydrogen peroxide is a challenge. The above mentioned properties for thepermeability of oxygen and water vapor have to be adjusted in such a waythat a sufficient storage stability is given. The layer thickness of thefilm should be kept as low as possible for environmental reasons and topreserve resources. Furthermore, the layer thickness naturally also hasan influence on the manufacturing costs. Against this background, thinlayers are desired, but these do not always guarantee sufficientmechanical strength. If different materials are combined in amulti-layer film in order to satisfy a wide range of requirements, themanufactureability of the multi-layer film must also be guaranteed.Certain materials cannot be combined with each other because thecohesion between layers is not always sufficient or because theirprocessing temperatures may be so different that joint processing isdifficult.

Finally, the film materials are of great importance, especially whenstoring a multi-component system, as substances from the multi-componentsystem can diffuse into the films and promote the detachment of layersforming the film. The choice of components of a hydrogenperoxide-containing formulation therefore also has an impact on thechoice of packaging.

BRIEF SUMMARY

The objective of the present application was to package hydrogenperoxide-containing formulations in such a way that the mechanicalstrength of the packaging is sufficiently high to allow safe storage,but that easy access to the ingredients is guaranteed.

Surprisingly, it has now been found that oxidizing agent-containingcompositions may be packaged where the water vapor permeability is lowand inflation may be reduced by allowing the film to have a certainlevel of oxygen permeability. The films include a special film compositesystem and also have a barrier layer. By reducing the water vaporpermeability, but adjusting the oxygen permeability to a sufficientlyhigh level, the tendency to expand due to oxygen, which is formed fromthe hydrogen peroxide, is reduced and the mechanical strength isincreased over time.

Cosmetic products for modifying the color of keratinous fibers areprovided. In an exemplary embodiment, the cosmetic product includes apackaging comprising a multi-layer film. The multi-layer film includes afirst polymer layer, a second polymer layer, and a barrier layer. Thefirst polymer layer is formed of polyethylene terephthalate orpolyethylene naphthalate, the second polymer layer is formed of apolyolefin, and the barrier layer is formed of metallized orientedpolypropylene. A cosmetic composition is packaged in the packagin andcomprises an oxidizing compound, a C₈-C₃₀ alcohol, an anionicsurfactant, and a non-ionic surfactant.

DETAILED DESCRIPTION

The following detailed description is merely exemplary in nature and isnot intended to limit the disclosure or the application and uses of thesubject matter as described herein. Furthermore, there is no intentionto be bound by any theory presented in the preceding background or thefollowing detailed description.

The subject-matter of the present disclosure is a cosmetic product formodifying the natural color of keratinous fibers, in particular humanhair, comprising

(i) at least one packaging (VP) comprising at least one multi-layer film(F) comprising at least one first polymer layer (P1), at least onesecond polymer layer (P2) and at least one barrier layer (BS), and

(ii) at least one cosmetic composition (KM) packaged in the packaging(VP) and containing:

a) at least one oxidizing compound,

b) at least one C₈-C₃₀ alcohol,

c) at least one anionic surfactant, and

d) at least one non-ionic surfactant,

wherein the first polymer layer (P1) is formed of polyethyleneterephthalate or polyethylene naphthalate, in particular polyethyleneterephthalate, the second polymer layer (P2) is formed of a polyolefin,in particular polyethylene, and the barrier layer (BS) is formed ofmetallized, oriented polypropylene.

Keratinous fibers, keratin-containing fibers or keratin fibers are furs,wool, feathers and in particular human hair. Although the products ascontemplated herein are primarily suitable for lightening and dyeingkeratinous fibers, there is nothing in principle to prevent their use inother areas.

The product as contemplated herein is a product for the oxidative colorchange of keratinous fibers, i.e. a product which is applied on thehuman head in order to achieve an oxidative coloring, a lightening, ableaching or a color nuance of the hair. In this context, color nuanceis understood to be a coloring in which the color result is lighter thanthe original hair color. That the product is to be used “to change thenatural color” means that the product either comprises only an oxidizingagent for bleaching, or that the product comprises an oxidizing agentused with a coupler that is not part of the present disclosure toachieve a color change, or that the product is used with a dye that isnot part of the present disclosure for further hair coloring.

Furthermore, the term “packaging” is understood to mean, as contemplatedherein, a packaging which is preferably in the form of a sachet. Asachet is a small package in the form of a bag or pouch, which is oftenused in the packaging of cosmetics. The capacity of the packaging, inparticular of the sachet, may, for example, be from about 5 to about1000 ml, preferably from about 10 to about 200 ml and particularlypreferably from about 20 to about 50 ml.

In addition, a multi-layer film (F) in the context of the presentdisclosure is understood to be a thin, flat and windable strip includingthe at least one polymer layer (P1) and the at least one polymer layer(P2). This multi-layer film (F) forms the wall of the packaging (VP).The packaging also contains a barrier layer (BS), which selectivelypermits or reduces the passage of water vapor and other gases such asoxygen.

The cosmetic product as contemplated herein comprises as a firstcomponent a packaging (VP) comprising at least one multi-layer film (F).This film comprises at least one first polymer layer (P1), at least onesecond polymer layer (P2) and at least one barrier layer (BS). Thismulti-layer film forms the wall or outer shell of the package. Asdescribed above, such packaging is usually made by gluing, pressing orwelding two pieces of film on top of each other (the packaging (VP) isfilled with the cosmetic composition (KM) at the same time), i.e. suchpackaging is closed at all edges. This package can be opened, forexample, by tearing or cutting it open.

The thickness of the multi-layer film (F) determines the mechanicalproperties and the strength of the films. It should be designed in sucha way that there is sufficient mechanical stability, but at the sametime the film (F)—and thus the packaging (VP) produced from thefilm—should be flexible enough to allow complete removal of the cosmeticcomposition (KM) from the opened packaging (VP) by pressing orsqueezing. A film meets these requirements if the film (F) has a certaintotal thickness. Preferred embodiments of the present disclosure areexemplified in that the at least one multi-layer film has a totalthickness of from about 28 μm to about 220 μm, preferably of from about52 μm to about 180 μm, more preferably of from about 80 μm to about 140μm. For the purposes of the present disclosure, the total thickness ofthe film (F) is understood to be the sum of the thicknesses of allindividual layers of the film (F).

The configuration of the layers (P1), (P2) and (BS) within themulti-layer film (F) may be different. Furthermore, it is also possiblethat the film (F) includes other layers in addition to the layersmentioned above. In addition, as contemplated herein, it is advantageousif all the previously mentioned layers are oriented parallel to thesurfaces of the film (F), i.e. all layers have the same orientation. Ifthe multi-layer film (F) contains the three layers (P1), (P2) and (BS)described above, the following layouts of the layers would be possible(viewed from the interior (in contact with the cosmetic composition(KM)) to the exterior):

a) *Interior*-Layer (P1)-Layer (P2)-Barrier layer (BS)-*Exterior*,

b) *Interior*-Layer (P1)-Barrier layer (BS)-Layer (P2)-*Exterior*,

c) *Interior*-Layer (P2)-Layer (P1)-Barrier layer (BS)-*Exterior*,

d) *Interior*-Layer (P2)-Barrier layer (BS)-Layer (P1)-*Exterior*,

e) *Interior*-Barrier layer (BS)-Layer (P1)-Layer (P2)-*Exterior*,

f) *Interior*-Barrier layer (BS)-Layer (P2)-Layer (P1)-*Exterior*.

However, as contemplated herein, it is preferred when the barrier layer(BS) is located between the first polymer layer (P1) and the secondpolymer layer (P2), the second polymer layer (P2) being located on theexterior of the package. In this case, the multi-layer film (F) iscomposed of three layers, the layer (P1) being at the innermost and incontact with the cosmetic composition (KM). The layer (P1) is in contactwith the barrier layer (BS), and the barrier layer (BS) is in contactwith the layer (P2). In this layer, the layers (P1) and (P2) are notadjacent to each other but are separated by the barrier layer (BS). Theparticular advantage of this configuration is that the—often verythin—barrier layer (BS) is not located on either the inner or outersurface of the multi-layer film (F), but is protected by the polymericlayer (P1) in the direction of the inside and by the polymeric layer(P2) in the direction of the outside. In this way, mechanical abrasionor mechanical destruction of the barrier layer (BS) can be avoided asfar as possible. It is therefore advantageous in the context of thepresent disclosure if the at least one multi-layer film (F) contains theat least one barrier layer (BS) between the at least one first polymerlayer (P1) and the at least one second polymer layer (P2). The use ofsuch packaging has been shown to be particularly advantageous in termsof increased storage stability, as this layout avoids mechanicalabrasion or mechanical destruction of the barrier layer (BS) as much aspossible. In a further preferred embodiment, the barrier layer (BS) isalso located between the two polymer layers P1 and P2, but the firstpolymer layer (P1) is located on the exterior of the package.

As contemplated herein, the exterior of the packaging (VP) is understoodto be that side of the package which does not come into contact with thecosmetic composition (KM) but with the environment. The use of suchpackaging has proven to be particularly advantageous in terms ofincreased storage stability, as this arrangement shows neither swellingnor delamination during prolonged contact with an oxidizingagent-containing composition.

The first polymeric material of the first layer (P1) is, as contemplatedherein, a polyester. This material may be a layer of one polymer type ora layer of a polymer blend. According to the present disclosure, the atleast one first polymer layer (P1) is formed from polyethyleneterephthalate or polyethylene naphthalate, in particular frompolyethylene terephthalate. As contemplated herein, the term “formed” isunderstood to mean that the polymer layer contains at least about 70% byweight, preferably at least about 80% by weight, more preferably atleast about 90% by weight, most preferably at least about 99% by weight,in each case based on the total weight of the polymer layer (P1), of theabove-mentioned compounds.

Polyethylene terephthalate (PET) is a polymer from the polyester group.Polyethylene terephthalate may be produced, for example, bytransesterification of dimethyl terephthalate with ethylene glycol athigher temperatures. In this transesterification reaction, methanol issplit off, which is removed by distillation. The resultingbis(2-hydroxyethyl)-terephthalate is converted to PET bypolycondensation, again producing ethylene glycol. Another method ofproducing polyethylene terephthalate is the direct polycondensation ofethylene glycol and terephthalic acid at high temperatures withdistillation of the resulting water. Polyethylene terephthalate isexemplified by a particularly high mechanical strength. If the PET layerforms the outer layer, this also offers the advantage that the layersunderneath may be printed without the print being rubbed off. The PETlayer is transparent and provides a mechanical protective layer for theprinted layer.

According to a preferred embodiment of the present disclosure, the layerthickness of the first polymer layer (P1) is from about 4 μm to about 50μm, preferably from about 5 μm to about 35 μm, more preferably fromabout 6 μm to about 20 μm. The layer thickness of the PET layer usedaccording to the preferred embodiment of the present disclosure isassociated with special advantages, which are related to generalproperties of PET. PET is exemplified by high dimensionalstability/stiffness. If PET with these layer thicknesses is chosen asthe first polymer layer (P1), this offers an advantageous mechanicaldimensional stability for the film. At the same time, the overallthickness of the film may be kept low, so that a material andresource-saving film may be provided.

Furthermore, the multi-layer film (F) from which the package is madecomprises a second polymer layer (P2) of a second polymeric material.The second polymeric material can be a layer of one type of polymer or alayer of a polymer mixture. It is provided in the context of the presentdisclosure that the at least one second polymer layer (P2) is formed ofa polyolefin, in particular of polyethylene. As contemplated herein, theterm “formed” is understood to mean that the polymer layer contains atleast about 70% by weight, preferably at least about 80% by weight,preferably at least about 90% by weight, in particular at least about99% by weight, each relative to the total weight of the polymer layer(P2) of the aforementioned compounds.

The second polymeric material of the second layer (P2) of themulti-layer film (F) is a polyolefin, in particular polyethylene.Polyolefins are polymers which are produced from alkenes such asethylene, propylene, 1-butene or isobutene by chain polymerization.Polyolefins are saturated hydrocarbons. They are semi-crystallinethermoplastics which are easy to process. They are exemplified by goodchemical resistance. Polyethylene and polypropylene are widely used infilm applications. As contemplated herein, polypropylene is thereforeused for the second layer (P2), but polyethylene is preferred.Polyethylene is produced by polymerization of ethylene using variouscatalysts. For example, polyethylene can be produced by polymerizingethylene in the gas phase or in suspension. The average relative molarmass may be controlled, for example, by adjusting a certain hydrogenpartial pressure during the polymerization of ethylene. Polyethylene maybe processed by extrusion and stretch blow molding, or by pressing,calendering, thermoforming and cold forming.

The second polymer layer (P2) serves as a supporting layer. Althoughpolyethylene has the disadvantage of being permeable to oxygen and watervapor, it has the advantage of being inexpensive and, due to its lowmelting point—lower than that of polypropylene—it is easy andenergy-saving to process.

According to a preferred embodiment of the present disclosure, thesecond polymer layer (P2) has a certain layer thickness. According tothe preferred embodiment of the present disclosure, the second polymerlayer (P2) has a layer thickness of from about 20 μm to about 150 μm,preferably of from about 30 μm to about 110 μm, more preferably of fromabout 40 μm to about 90 μm. In particular, the second polymer layer (P2)has a higher layer thickness than the first polymer layer (P1).

The polymer layers (P1) and (P2) of the multi-layer film (F) compriseorganic polymeric materials, which generally have only an insufficientbarrier effect against gases and water vapor. If the oxidizingagent-containing composition (KM) is packaged in a packaging (VP) madeof a multi-layer film (F), which only comprises the two organic polymerlayers (P1) and (P2), water vapor may escape unhindered, so that thewater content in the composition (KM) changes in an unacceptable wayduring longer storage. To minimize the uncontrolled escape of watervapor from the packaging (VP), the organic polymer layers (P1) and (P2)are therefore used in combination with a barrier layer (BS).

The barrier layer (BS) has a passage barrier effect for gases and watervapor. As contemplated herein, this means that the barrier layer (BS)reduces and controls the permeation rate of water vapor and gasesthrough the film. A film (F) as contemplated herein, which has a barrierlayer (BS) in addition to the layers (P1) and (P2), thus has a reducedwater vapor permeability and a reduced gas permeability compared to acomparable film (with the same overall thickness), which only has thetwo layers (P1) and (P2) but no barrier layer (BS).

For example, the barrier layer (BS) is a thin layer comprising aninorganic material, which may be applied to organic polymer layers usingvacuum coating techniques (e.g. PVD “physical vapor deposition” or CVD“chemical vapor deposition”).

If the barrier layer (BS) is a layer comprising at least one inorganicmaterial, then the films may be made of metals, semi-metals or metal orsemi-metal oxides, for example aluminum, aluminum oxides, magnesium,magnesium oxides, silicon, silicon oxides, titanium, titanium oxides,tin, tin oxides, zirconium, zirconium oxide and/or carbon.

As contemplated herein, the barrier layer (BS) is made of metallized,oriented polypropylene. Polypropylene is alternatively also known aspoly(l-methylethylene), and is a thermoplastic polymer belonging to thegroup of polyolefins. Polypropylene is produced by polymerization ofpropylene (propene) using various catalysts. For example, polypropylenemay be produced by stereospecific polymerization of propylene in the gasphase or in suspension according to Giulio Natta. Polypropylene ascontemplated herein may be isotactic and thus highly crystalline, butalso syndiotactic or amporphous. The average relative molar mass may becontrolled, for example, by adjusting a certain hydrogen partialpressure during the polymerization of the propene. For example,polypropylene may have average relative molar masses of approx. 150,000to about 1,500,000 g/mol. Polypropylene may be processed by extrusionand stretch blow molding, or by pressing, calendering, thermoforming andcold forming.

The term oriented polypropylene is understood by the expert to mean apolypropylene film which is stretched during production following anextrusion or calendering step, namely stretched in the direction ofextrusion and/or stretched at about 90° to the direction of extrusion.The film is preferably stretched in both directions, i.e. films in whichthe barrier layer—or the entire film—is biaxially stretched,particularly preferably simultaneously biaxially. During the stretchingstep the polymeric material is oriented. This is particularly importantfor the properties of the film layer in the case of polypropylenes,since the orientation step determines the shape of the crystallinedomains of the polymeric material and thus the physical properties ofthe film.

The polypropylene film is metallized. Possible metals are the abovementioned metals aluminum, magnesium, silicon, titanium, tin, andzirconium, especially aluminum. The metals are vapor-deposited onto thecarrier film. According to a preferred embodiment of the presentdisclosure, the ratio of the layer thickness of metal to orientedpolypropylene is from about 1:1000 to about 1:10, preferably from about1:500 to about 1:50, more preferably from about 1:200 to about 1:100.

The production of films with barrier layers comprising inorganicmaterial is known. Also, the multi-layer film (F) used in accordancewith the present disclosure may be manufactured by a process which isused for the manufacture of known films with barrier layers in the stateof the art, as described for example in the documents EP 1036813 A1, EP2371539 A1 and EP 1541340 A1.

The barrier layer (BS) may additionally include a thin layer ofinorganic-organic hybrid polymers. These polymers are known in theliterature under the technical term ORMOCER polymers. A typical ORMOCERpolymer may be produced, for example, by hydrolytic polycondensation ofan organo-functional silane with an aluminum compound and possibly withan inorganic oxide component. Corresponding syntheses are disclosed inEP 0792846 B 1, which is referred to in full here. Inorganic-organichybrid polymers (ORMOCER polymers) have both inorganic and organicnetwork structures. The inorganic silicate network structure can beformed in the sol-gel process by controlled hydrolysis and condensationof alkoxysilanes. The silicate network may be specifically modified byincluding metal alkoxides in the sol-gel process. By polymerization oforgano-functional groups, which are introduced into the material by theorganoalkoxylanes, an additional organic network is built up. TheORMOCER polymers produced in this way may be applied to layers (P1)and/or (P2) using conventional application techniques (spraying,brushing, etc.).

The thicker the barrier layer (BS), the greater or stronger is thebarrier effect against the passage of gases and water vapor. Thethickness of the barrier layer (BS) may therefore be selected dependingon the desired barrier effect. According to a preferred embodiment ofthe present disclosure, the at least one barrier layer (BS) has a layerthickness of from about 4 μm to about 25 μm, preferably of from about 5μm to about 20 μm, more preferably of from about 6 μm to about 18 μm.

The material, structure and layer thicknesses determine the permeabilityvalues of the film. The multi-layer film (F) of the packaging of thecosmetic product as contemplated herein is exemplified by advantageousproperties with regard to oxygen permeability and water vaporpermeability. The multi-layer film exhibits an oxygen transmission rate(OTR) at 23° C. and 50% relative humidity of from about 0.1 to about 5cc/m²/d/bar, preferably from about 0.2 to about 3.5 cc/m²/d/bar, morepreferably from about 0.5 to about 2.5 cc/m²/d/bar, and a water vaportransmission rate at 38° C. and 100% relative humidity of from about 0.1to about 5 g/m²d, preferably from about 0.2 to about 3.5 g/m²d, morepreferably from about 0.5 to about 2.5 g/m²d.

As contemplated herein, the permeability values of the film (F) areadvantageously adjusted. The film (F) thus imparts advantageous barrierproperties to the package, especially with regard to the permeabilityfor water vapor: Water Vapor Transmission Rate (WVTR) measured in theunit g/(m²d) or g/(m²24 h) measured according to the ASTM F 1249 methodat 38° C. ambient temperature and 100% relative humidity, and foroxygen: Oxygen Transmission Rate (OTR) measured in cm³/(m²d bar) orcm³/(m²24 h), where cm³ is equal to cc, at an atmospheric pressure of 1bar measured according to ASTM D 3985 at 23° C. ambient temperature and50% relative humidity.

In addition to the layers (P1), (P2) and (BS) described so far, themulti-layer film (F) may additionally comprise one or more furtherlayers. These additional layers may, for example, be intermediate layersand/or adhesive layers. It is therefore preferred as contemplated hereinif the at least one multi-layer film (F) additionally contains at leastone further layer selected from the group of intermediate layers (SZ),adhesive layers (SK) and mixtures thereof.

For example, the films (F) may have further intermediate layers (SZ) toincrease the mechanical stability. Intermediate layers may also preventor minimize the permeation of polymers or remaining monomers from apolymer layer into the cosmetic composition (KM).

To increase bond strength, the films may also comprise one or moreadhesive layers (SK) to reduce or prevent delamination (i.e. peeling orformation of an air space) between two layers.

A particularly preferred product as contemplated herein is exemplifiedin that the multi-layer film (F) comprises, in addition to the firstpolymer layer (P1), the second polymer layer (P2) and the barrier layer(BS), one or more further layers selected from intermediate layers (SZ)and/or adhesive layers (SK).

If the multi-layer film (F) contains other layers in addition to thelayers (P1), (P2) and (BS), the following layouts of the layers arepossible (from interior (in contact with the cosmetic composition (KM))to exterior):

a) *Interior*-Layer (P1)-First adhesive layer (SK1)-Layer (P2)-Secondadhesive layer (SK2)-Barrier layer (BS)-*Exterior*,

b) *Interior*-Layer (P1)-Adhesive layer (SK1)-Layer (P2)-Barrier layer(BS)-*Exterior*,

c) *Interior*-Layer (P1)-Layer (P2)-Second adhesive layer (SK2)-Barrierlayer (BS)-*Exterior*,

d) *Interior*-Barrier layer (BS)-First adhesive layer (SK1)-Layer(P1)-Second adhesive layer (SK2)-Layer (P2)-*Exterior*,

e) *Interior*-Barrier layer (BS)-Adhesive layer (SK)-Layer (P1)-Layer(P2)-*Exterior*,

f) *Interior*-Barrier layer (BS)-Layer (51)-Adhesive layer (SK)-Layer(P2)-*Exterior*,

g) *Interior*-Layer (P1)-First adhesive layer (SK1)-Barrier layer(BS)-Second adhesive layer (SK2)-Layer (P2)-*Exterior*,

h) *Interior*-Layer (P1)-Adhesive layer (SK)-Barrier layer (BS)-Layer(P2)-*Exterior*,

i) *Interior*-Layer (P1)-Barrier Layer (BS)-Adhesive layer (SK)-Layer(P2)-*Exterior*

In any case, the film should be designed so that there is sufficientadhesion between the films. According to a preferred embodiment of thepresent disclosure, the bond strength of the film is from about 0.1 toabout 10 N/15 mm, preferably from about 1 to about 8 N/15 mm, morepreferably from about 1.5 to about 5 N/15 mm. This is measured by theASTM F-904 method. The bond strength is a physical measure of theadhesive force between the layers. It is related to the two layers of afilm with the lowest bond strength between two layers of the same film.The adhesive strengths set as contemplated herein result in a favorablemechanical stability over the storage time of the packaged cosmeticproduct.

Also, the strength between two bonded (sealed or sealed-off) filmsshould be sufficient. According to a preferred embodiment of the presentdisclosure, the seal strength of the packaging (VP) is from about 10 toabout 40 N/15 mm, preferably from about 15 to about 35 N/15 mm, morepreferably from about 20 to about 30 N/15 mm, under the conditions of150° C., 2.54 cm (1″) and 4 kg/cm². The seal strength is measuredaccording to ASTM F-88 under the above conditions. The challenge withpackaging is always to ensure the mechanical durability of the packagingwhile at the same time making the contents easily accessible to theuser. Adjusting the seal strength to these values enables both of theseobjectives to be achieved.

The term sealed seam refers to a seam by which the packaging is closed.Usually, two films are placed on top of each other for closing thepackaging and are pressed together by a force perpendicular to the filmsurface. By heating the films in the area that is being compressed,parts of the compressed areas may fuse together, so that the films arewelded together. There may also be an adhesive between the compressedfilms that strengthens the seam.

The product as contemplated herein comprises as a second component acosmetic composition (KM) which is packaged in the packaging (VP) andwhich comprises at least an oxidizing agent, a C₈-C₃₀ alcohol, anon-ionic surfactant and an anionic surfactant.

The intended use of the product as contemplated herein is oxidativecolor change. For this purpose—as already described above—a cosmeticcomposition (KM) containing an oxidizing agent is usually mixed with asecond composition (B) which is prepared separately from (KM). In thisway, the ready-to-use oxidative color changing agent is produced.Depending on whether the oxidative color change is intended to achieve ableaching, brightening or coloring effect, the composition (B) maycontain different ingredients. If pure lightening or bleaching is to beachieved, composition (B) contains at least one alkalizing agent. Ifoxidative coloration is desired, the composition (B) often contains theoxidative colorant precursors in addition to the alkalizing agent. Inorder to ensure that the compositions (KM) and (B) may be mixedsufficiently quickly, both the composition (KM) and the composition (B)are usually free-flowing, aqueous or water-containing compositions.

As contemplated herein, the composition (KM) is an aqueous composition.The water content of the composition (KM) may, for example, be fromabout 60 to about 97% by weight, preferably from about 75 to about 93%by weight, more preferably from about 78 to about 91% by weight, inparticular from about 80 to about 88.0% by weight, based on the totalweight of the composition (KM). All weight data in % by weight refer tothe total weight of water contained in the composition (KM), which isset in relation to the total weight of the composition (KM).

The cosmetic composition (KM) contains as first essential ingredient a)at least one oxidizing agent. Preference is given to certain oxidizingagents. It is therefore advantageous in the context of the presentdisclosure if the cosmetic composition (KM) contains at least oneoxidizing compound selected from the group of persulfates, chlorites,hydrogen peroxides and attachment products of hydrogen peroxides tourea, melamine and sodium borate, in particular hydrogen peroxides. Ascontemplated herein, the use of hydrogen peroxide has proven to beparticularly advantageous.

The concentration of the oxidizing agent in the composition (KM) isdetermined on the one hand by the legal requirements and on the otherhand by the desired effect; preferably from about 0.5 to about 20.0% byweight solutions in water are used. Therefore, it is found to bepreferred if the cosmetic composition (KM) contains at least oneoxidizing compound, in particular hydrogen peroxide, in a total amountof from about 0.5 to about 20% by weight, preferably from about 1.0 toabout 18% by weight, more preferably from about 1.2 to about 16% byweight, in particular from about 1.5 to about 15% by weight, based onthe total weight of the cosmetic composition (KM). The higher thecontent of oxidizing agent, in particular hydrogen peroxide, in thecomposition (KM), the greater is the amount of gas produced by aproportional decomposition of the oxidizing agent. Compositionscontaining a higher concentration of oxidizing agent are therefore muchmore difficult to package in packaging (VP) than compositions containinga lower concentration. The amount of hydrogen peroxide refers to 100%hydrogen peroxide.

In the course of the work leading to this present disclosure, it wasfound that the product as contemplated herein is particularly suitablefor the packaging and stable storage of higher concentrated hydrogenperoxide compositions (KM). Thus, packaging (VP) as contemplated herein,which contained compositions (KM) with from about 9 to about 12% byweight of hydrogen peroxide, showed no changes in volume (i.e. noswelling) and no unplanned openings (i.e. the packages did not burstopen) even after storage at elevated temperature for several weeks.

The cosmetic composition (KM) contains as second essential ingredient b)at least one C₈-C₃₀ alcohol. In this context, mixtures of linear C₁₄-C₁₈alcohols have proved particularly useful. Such mixtures in combinationwith the further features c) to d) of the composition (KM) lead to anexcellent stabilization of the at least one oxidizing agent, especiallyof the hydrogen peroxide. It is therefore advantageous within thecontext of the present disclosure if the cosmetic composition (KM)contains at least one linear C₁₀-C₃₀ alcohol selected from the group oflinear C₁₀-C₂₈ alcohols, linear C₁₂-C₂₆ alcohols, linear C₁₄-C₂₀alcohols, linear C₁₄-C₁₈ alcohols as well as mixtures of theaforementioned alcohols, in particular a mixture of linear C₁₄-C₁₈alcohols. In the context of the present disclosure, the mixture of cetylalcohol and stearyl alcohol known as cetearyl alcohol, in particular amixture of about 50% by weight cetyl alcohol and about 50% by weightstearyl alcohol, based on the total weight of the mixture, has proved tobe particularly advantageous.

The at least one C₅-C₃₀ alcohol is preferably used in certain quantityranges. Preferred embodiments of the present disclosure are exemplifiedin that the cosmetic composition (KM) contains the at least one linearC₅-C₃₀ alcohol, in particular a mixture of linear C₁₄-C₁₅ alcohols, in atotal amount of from about 0.5 to about 8% by weight, preferably of fromabout 0.7 to about 7% by weight, more preferably of from about 1.0 toabout 6% by weight, in particular of from about 1.5 to about 4% byweight, based on the total weight of the cosmetic composition (KM). Theuse of the total amounts of at least one C₅-C₃₀ alcohol, in particularthe mixture of linear C₁₄-C₁₈ alcohols, as indicated above, incombination with the other ingredients of the cosmetic composition (KM)leads to a particularly good stabilization of the oxidizing agentcontained in this composition, in particular the hydrogen peroxide.

As third essential ingredient c), the cosmetic composition (KM) containsat least one anionic surfactant. The use of these surfactants ensuressufficient miscibility of the cosmetic composition (KM) with composition(B) containing the oxidative colorant precursors and also ensures a highstorage stability by avoiding precipitation of components of thecosmetic composition (KM). Preferred embodiments of the presentdisclosure are exemplified in that the cosmetic composition (KM)contains at least one anionic surfactant selected from the group of (i)C₅-C₁₈ alkyl ether sulfates with 1 to 10 moles of ethylene oxide permole of C₅-C₁₅ alkyl ether sulfate, and salts thereof, in particular ofsodium salts of C₁₂-C₁₄ alkyl ether sulfates with 2 mol ethylene oxideper mol C₁₂-C₁₄ alkyl ether sulfate, (ii) C₅-C₁₅ alkyl sulfates, (iii)salts of linear and branched C₅-C₃₀ carboxylic acids, (iv) acylsarcosides having 8 to 24 carbon atoms in the acyl group, (v) acyltaurides having 8 to 24 carbon atoms in the acyl group, (vi) acylisethionates having 8 to 24 carbon atoms in the acyl group, (vii)sulfosuccinic acid mono- and dialkyl esters with 8 to 24 carbon atoms inthe alkyl group and sulfosuccinic acid mono-alkyl polyoxyethyl esterswith 8 to 24 carbon atoms in the alkyl group and 1 to 6, preferably 1 to4 oxyethyl groups, (viii) linear alpha-olefin sulfonates with 8 to 24carbon atoms, (ix) alpha-sulfonic acid methyl esters of carboxylic acidswith 8 to 30 carbon atoms, (x) alkyl and/or alkenyl ether phosphates,(xi) sulfonates of unsaturated carboxylic acids having 8 to 24 carbonatoms and 1 to 6 double bonds, (xii) C₈-C₃₀ ether carbonylates having 1to 10 mol ethylene oxide per mol C₅-C₃₀ ether carboxylate and (xiii)mixtures thereof, in particular sodium salts of C₁₄-C₁₈ alkyl sulfates.An anionic surfactant particularly suitable within the scope of thepresent disclosure is the compound known under the INCI designationSodium Cetearyl Sulfate (CAS No.: 59186-41-3).

In order to ensure a sufficient dispersion of all ingredients of thecosmetic product (KM), at least one anionic surfactant is preferablyused in certain total quantities. It is therefore preferred in thecontext of the present disclosure if the cosmetic composition (KM)contains the at least one anionic surfactant, in particular sodium saltsof C₁₄-C₁₅ alkyl sulfates, in a total amount of from about 0.1 to about7% by weight, preferably of from about 0.1 to about 5.5% by weight, morepreferably of from about 0.10 to about 4.0% by weight, in particular offrom about 0.10 to about 3.5% by weight, based on the total weight ofthe cosmetic composition (KM).

As the fourth essential ingredient d), the cosmetic composition (KM)contains at least one non-ionic surfactant. The combination of at leastone anionic surfactant and at least one non-ionic surfactant ensuresexcellent dispersion of the ingredients of the cosmetic composition (KM)and thus high storage stability. In addition, the use of such surfactantcombinations leads to a good spreadability, in particular miscibility,of the cosmetic composition (KM) with the composition (B) containing theoxidative colorant precursors. It is therefore preferred in the contextof the present disclosure if the cosmetic composition (KM) contains atleast one non-ionic surfactant selected from the group including (i)ethoxylated and/or propoxylated alcohols and carboxylic acids having 8to 30 carbon atoms and 2 to 30 ethylene oxide and/or propylene oxideunits per mole of alcohol, (ii) attachment products of 30 to 50 moles ofethylene oxide to castor oil and hydrogenated castor oil, (iii) alkylpolyglucosides corresponding to the formula R¹O—[G]_(p), in which R¹ isan alkyl and/or alkenyl radical containing 4 to 22 carbon atoms, G is asugar unit containing 5 or 6 carbon atoms and p is a number of 1 to 10,(iv) monoethanolamides of carboxylic acids containing 8 to 30 carbonatoms and (v) mixtures thereof, more particularly attachment products of40 mol ethylene oxide with hydrogenated castor oil. In the formulaR¹O—[G]_(p), the index number p indicates the degree of oligomerization(DP), i.e. the distribution of mono- and oligoglucosides, and representsa number between about 1 and about 10. Whereas p must always be aninteger in a given compound and can assume the values p=1 to 6 inparticular, the value p for a particular alkyl oligoglucoside is ananalytically determined arithmetical quantity which is usually afractional number. As contemplated herein, alkyl and/or alkenyloligoglucosides with an average degree of oligomerization p of fromabout 1.1 to about 3.0 are preferably used. From the point of view ofapplication technology, those alkyl and/or alkenyl oligoglucosides arepreferred whose degree of oligomerization is less than about 1.7 and inparticular lies between about 1.2 and about 1.7. The alkyl or alkenylradical R¹ may be derived from primary alcohols containing 4 to 20,preferably 8 to 16 carbon atoms. As contemplated herein, alkyloligoglucosides based on hardened C_(12/14) coconut alcohol with a DP offrom about 1-3, as they are commercially available under the INCIdesignation “Coco-Glucoside” for example, are particularly preferred.The non-ionic surfactants used with particular preference in the contextof the present disclosure are ethoxylated alcohols with 14 to 18 carbonatoms and 20 to 30 moles of ethylene oxide units per mole of alcohol, inparticular the compound known under the INCI designation Ceteareth-20(CAS No.: 68439-49-6).

To ensure sufficient dispersion of all ingredients of the cosmeticproduct (KM), at least one non-ionic surfactant is preferably used incertain total quantities. Preferred embodiments of the presentdisclosure are exemplified in that the cosmetic composition (KM)contains the at least one non-ionic surfactant, in particular attachmentproducts of 40 moles of ethylene oxide to hydrogenated castor oil, in atotal amount of from about 0.10 to about 4.0% by weight, preferably offrom about 0.12 to about 3.0% by weight, more preferably of from about0.15 to about 2.5% by weight, in particular of from about 0.20 to about2.0% by weight, based on the total weight of the cosmetic composition(KM).

Furthermore, the cosmetic composition (KM) may contain as a furtheringredient e) at least one complexing compound. The use of thiscomplexing compound leads to an improved stabilization of the oxidizingagent, in particular of the hydrogen peroxide, since the latter isprotected against decomposition due to the reaction with metal ions ofthe cosmetic composition (KM). In the context of the present disclosure,certain complexing compounds are preferably used. As contemplatedherein, it is therefore advantageous if the cosmetic composition (KM)contains at least one complexing compound selected from the groupincluding β-alaninediacetic acid, cyclodextrin,diethylenetriaminepentamethylenephosphonic acid,ethylenediaminetetraacetic acid (EDTA) and their salts, etidronic acid,hydroxyethylethylenediaminetetraacetic acid (HEDTA) and its sodiumsalts, sodium salts of nitrilotriacetic acid (NTA),diethylenetriaminepentaacetic acid, phytic acid,hydroxypropylcyclodextrin, methylcyclodextrin,aminotrimethylenephosphonate-pentasodium, ethylenediaminetetramethylenephosphonate-pentasodium, diethylenetriamine-pentaacetate-pentasodium,pentasodium triphosphate, potassium EDTMP, sodium EDTMP, sodiumdihydroxyethylglycinate, sodium phytate, sodiumpolydimethylglycinophenolsulfonate, tetrahydroxyethylethylenedi amine,tetrahydroxypropylethylenediamine, tetrapotassium etidronate,tetranatriumetidronate, tetrasodium iminodisuccinate, trisodiumethylenediamine disuccinate, tetrasodiumN,N-bis(carboxymethyl)glutamate, tetrasodium DL-alanine-N,N-diacetateand desferrioxamine, in particular ethylenediamine tetraacetic acid. Inthe context of the present disclosure, the use ofethylenediaminetetraacetic acid (CAS No. xxxx) has proved to beparticularly advantageous with respect to the stabilization of theoxidizing agent, in particular the hydrogen peroxide.

The at least one complexing compound, in particularethylenediaminetetraacetic acid, is preferably present in cosmeticcompositions (KM) in certain total amounts. This ensures adequatestabilization of the oxidizing agent, in particular the hydrogenperoxide. Preferred embodiments of the present disclosure areexemplified in that the cosmetic composition (KM) contains at least onecomplexing compound, in particular ethylenediaminetetraacetic acid, in atotal amount of from about 0.10 to about 1.0% by weight, preferably fromabout 0.10 to about 0.80% by weight, more preferably from about 0.10 toabout 0.60% by weight, in particular from about 0.10 to about 0.50% byweight, relative to the total weight of the cosmetic composition (KM).

In the course of the work leading to this present disclosure, it hasbeen found that the use of the aforementioned essential ingredients b)to d) ensures that the cosmetic composition (KM) containing at least oneoxidizing agent may be packaged and stored in the special packaging (VP)without this packaging—which has a barrier layer with a penetrationbarrier effect for gases and water vapour—swelling or bursting.

In this context, a very specific combination of the essentialingredients a) to d) of the cosmetic composition (KM) has proven to beadvantageous. In a preferred embodiment, the product as contemplatedherein is exemplified in that the cosmetic composition (KM) containshydrogen peroxide, a mixture of linear C₁₄-C₁₈ alcohols, a sodium saltof a C₁₆-C₁₈ alkysulfate and an addition product of 40 moles of ethyleneoxide to hydrogenated castor oil, and ethylenediaminetetraacetic acid.

For further optimization of the storage stability, the above-mentionedcompounds are preferably used in certain quantity ranges in composition(KM). Particularly preferred forms are exemplified by the fact that thecosmetic composition (KM) comprises

a) from about 1.5 to about 15% by weight of hydrogen peroxide,

b) from about 1.0 to about 5.0% by weight of a mixture of linear C₁₄-C₁₅alcohols,

c) from about 0.10 to about 3.5% by weight of a sodium salt of C₁₆-C₁₅alkysulfates; and

d) from about 0.2 to about 2.0% by weight of an attachment product of 40moles of ethylene oxide to hydrogenated castor oil.

The cosmetic composition (KM) preferably has an acidic pH value in orderto avoid or reduce decomposition of the oxidizing agent used, inparticular the hydrogen peroxide. It is therefore preferred in thecontext of the present disclosure that the cosmetic composition (KM) hasa pH value (measured at 20° C.) of from about pH 1.5 to about pH 5.0,preferably of from about pH 2.0 to about pH 4.7, more preferably of fromabout pH 2.3 to about pH 4.4, in particular of from about pH 2.5 toabout pH 4.

The composition (KM) contained in the packaging (VP) contains theessential ingredients in an aqueous or aqueous-alcoholic carrier, whichmay be a cream, an emulsion, a gel or a surfactant-containing foamingsolution. In order to achieve the desired properties of these dosageforms, the composition (KM) may also contain additional activeingredients, auxiliary substances and additives.

The composition (KM) may also contain one or more acids to stabilize theoxidizing agent used, especially the hydrogen peroxide. It is thereforepreferred in the context of the present disclosure if the cosmeticcomposition (KM) additionally contains at least one acid selected fromthe group of dipicolinic acid, citric acid, acetic acid, malic acid,lactic acid, tartaric acid, hydrochloric acid, phosphoric acid,pyrophosphoric acid and salts thereof, benzoic acid and salts thereof,1-hydroxyethane-1,1-diphosphonic acid, ethylenediaminetetraacetic acidand salts thereof, sulfuric acid, and mixtures thereof, in particular amixture of disodium pyrophosphate and benzoic acid and salts thereof.

A particularly high stabilization of the oxidizing agent, in particularof the hydrogen peroxide, is achieved if the above-mentioned acids areused in certain quantity ranges. It is therefore advantageous in thiscontext if the at least one acid, in particular the mixture of disodiumpyrophosphate and benzoic acid and their salts, is present in a totalquantity of from about 0.1 to about 3.0% by weight, preferably of fromabout 0.5 to about 2.5% by weight, more preferably of from about 0.8 toabout 2.0% by weight, in particular of from about 0.9 to about 1.5% byweight, based on the total weight of the cosmetic composition (KM).

The following tables show particularly preferred forms AF 1 to AF 28 ofthe cosmetic composition (KM) contained in the packaging (VP) (allfigures in % by weight, unless indicated otherwise).

AF 1 AF 2 AF 3 AF 4 Oxidizing agent  0.5-20  1.0-18  1.2-16  1.5-15C₈-C₃₀ alcohol 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionic surfactant0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant 0.10-4.00.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100 ad 100 ad100

AF 5 AF 6 AF 7 AF 8 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16  1.5-15C₈-C₃₀ alcohol 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionic surfactant0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant 0.10-4.00.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100 ad 100 ad100

AF 9 AF 10 AF 11 AF 12 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16 1.5-15 C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionicsurfactant 0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant0.10-4.0 0.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100 ad100 ad 100

AF 13 AF 14 AF 15 AF 16 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16 1.5-15 C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionicsurfactant ⁴⁾ 0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant0.10-4.0 0.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100 ad100 ad 100

AF 17 AF 18 AF 19 AF 20 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16 1.5-15 C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionicsurfactant ⁴⁾ 0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant⁵⁾ 0.10-4.0 0.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100ad 100 ad 100

AF 21 AF 22 AF 23 AF 24 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16 1.5-15 C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionicsurfactant ⁴⁾ 0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant⁵⁾ 0.10-4.0 0.12-3.0 0.15-2.5 0.20-2.0 Cosmetic carrier ¹⁾ ad 100 ad 100ad 100 ad 100

AF 21 AF 22 AF 23 AF 24 Oxidizing agent ²⁾  0.5-20  1.0-18  1.2-16 1.5-15 C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5  1.0-6.0  1.0-5.0 Anionicsurfactant ⁴⁾ 0.10-7.0 0.10-5.5 0.10-4.0 0.20-3.5 Non-ionic surfactant⁵⁾ 0.10-4.0 0.12-3.0 0.15-2.5 0.20-2.0 Acid  0.1-3.0  0.5-2.5  0.8-2.0 0.9-1.5 Cosmetic carrier ¹⁾ ad 100 ad 100 ad 100 ad 100

AF 25 AF 26 AF 27 AF 28 Oxidizing agent ²⁾  0.5-20  1.0-18 1.2-16 1.5-15  C₈-C₃₀ alcohol ³⁾ 0.50-7.0 0.50-6.5 1.0-6.0 1.0-5.0 Anionicsurfactant ⁴⁾ 0.10-7.0 0.10-5.5 0.10-4.0  0.20-3.5  Non-ionic surfactant⁵⁾ 0.10-4.0 0.12-3.0 0.15-2.5  0.20-2.0  Complexing compound ⁶⁾ 0.10-1.0 0.10-0.80 0.10-0.60 0.10-0.50 Acid ⁷⁾  0.1-3.0  0.5-2.5 0.8-2.0 0.9-1.5Cosmetic carrier ¹⁾ ad 100 ad 100 ad 100 ad 100¹⁾ Aqueous or aqueous-alcoholic carrier²⁾ Hydrogen peroxide, amount calculated on 100% hydrogen peroxide³⁾ Mixture of linear C₁₄-C₁₈ alcohols, especially cetearyl alcohol⁴⁾ Sodium salts of C₁₆-C₁₅ alkysulfates, especially sodium cetarylsulfate⁵⁾ Attachment products of 40 mol ethylene oxide to hydrogenated castoroil⁶⁾ Ethylenediaminetetraacetic acid⁷⁾ Mixture of disodium pyrophosphate and sodium benzoate

The previously described embodiments AF 1 to 28 are each packaged inpackagung (VP) with the following layout of the multi-layer film (F)(from interior (in contact with the cosmetic composition (KM)) toexterior):

a) *Interior*-Layer (P1)-Layer (P2)-Barrier layer (BS)-*Exterior*,

b) *Interior*-Layer (P1)-Barrier layer (BS)-Layer (P2)-*Exterior*,

c) *Interior*-Layer (P2)-Layer (P1)-Barrier layer (BS)-*Exterior*,

d) *Interior*-Layer (P2)-Barrier layer (BS)-Layer (P1)-*Exterior*,

e) *Interior*-Barrier layer (BS)-Layer (P1)-Layer (P2)-*Exterior*,

f) *Interior*-Barrier layer (BS)-Layer (P2)-Layer (P1)-*Exterior*,

g) *Interior*-Layer (P1)-First adhesive layer (SK1)-Layer (P2)-Secondadhesive layer (SK2)-Barrier layer (BS)-*Exterior*,

h) *Interior*-Layer (P1)-Adhesive layer (SK1)-Layer (P2)-Barrier layer(BS)-*Exterior*,

i) *Interior*-Layer (P1)-Layer (P2)-Second adhesive layer (SK2)-Barrierlayer (BS)-*Exterior*,

j) *Interior*-Barrier layer (BS)-First adhesive layer (SK1)-Layer(P1)-Second adhesive layer (SK2)-Layer (P2)-*Exterior*,

k) *Interior*-Barrier layer (BS)-Adhesive layer (SK)-Layer (P1)-Layer(P2)-*Exterior*,

l) *Interior*-Barrier layer (BS)-Layer (S1)-Adhesive layer (SK)-Layer(P2)-*Exterior*,

m) *Interior*-Layer (P1)-First adhesive layer (SK1)-Barrier layer(BS)-Second adhesive layer (SK2)-Layer (P2)-*Exterior*,

n) *Interior*-Layer (P1)-Adhesive layer (SK)-Barrier layer (BS)-Layer(P2)-*Exterior*,

o) *Interior*-Layer (P1)-Barrier Layer (BS)-Adhesive layer (SK)-Layer(P2)-*Exterior*.

The products obtained in this way have a high storage stability and awater loss during storage that is within an acceptable range. Noswelling or delamination of the packaging (VP) during storage of thesecosmetic products was observed.

The product as contemplated herein is used for the purpose of oxidativecolor change. For this purpose, the composition (KM) packaged in thepackaging (VP), which is the oxidizing agent composition, is mixed withat least one further composition (B) to produce the ready-to-use colorchanging agent. To prevent incompatibilities or premature reaction, thecompositions (KM) and (B) are packaged separately.

A particularly preferred product as contemplated herein comprises acomposition (B) separately prepared from composition (KM), whereincomposition (B) contains at least one compound selected from oxidativecolorant precursor, direct dyes, alkalizing agents and mixtures thereof.Preferred products of the present disclosure additionally comprise atleast one second cosmetic composition (KM2) which contains at least onecompound selected from oxidative colorant precursor, direct dyes,alkalizing agents and mixtures thereof and which is packaged separatelyfrom the cosmetic composition (KM).

If oxidative coloration is desired, composition (B) contains at leastone oxidative colorant precursor. Oxidative colorant precursors may bedivided into developers and couplers, whereby the developers are usuallyused in the form of their physiologically compatible salts (e.g. in theform of their hydrochlorides, hydrobromides, hydrogen sulfates orsulfates) due to their greater sensitivity to oxygen. Coupler componentsalone do not form a significant coloration in the course of oxidativecoloration, but always require the presence of developer components.Preferably such agents contain at least one oxidative colorant precursorof the developer type and at least one oxidative colorant precursor ofthe coupler type. Particularly suitable oxidative colorant precursors ofthe developer type are selected from at least one compound from thegroup formed by p-phenylenediamine, p-toluenediamine,2-(2-hydroxyethyl)-p-phenylenediamine,2-(1,2-dihydroxyethyl)-p-phenylenediamine,N,N-bis-(2-hydroxyethyl)-p-phenylenediamine,2-methoxymethyl-p-phenylenediamine,N-(4-amino-3-methylphenyl)-N-[3-(1H-imidazol-1-yl)propyl]amineN,N′-bis-(2-hydroxyethyl)-N,N′-bis-(4-aminophenyl)-1,3-diamino-propane-2-ol,bis-(2-hydroxy-5-aminophenyl)methane,1,3-bis-(2,5-diaminophenoxy)propane-2-ol,N,N′-bis-(4-aminophenyl)-1,4-diazacycloheptane,1,10-bis-(2,5-diaminophenyl)-1,4,7,10-tetraoxadecane p-aminophenol,4-amino-3-methylphenol, 4-amino-2-aminomethylphenol,4-amino-2-(1,2-dihydroxyethyl)phenol,4-amino-2-(diethylaminomethyl)phenol4,5-diamino-1-(2-hydroxyethyl)pyrazole, 2,4,5,6-tetraamino-pyrimidine,4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triamino-pyrimidine,2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-on and theirphysiologically compatible salts.

Particularly suitable oxidative colorant precursors of the coupler typeare selected from the group formed by 3-aminophenol,5-amino-2-methylphenol, 3-amino-2-chloro-6-methylphenol,2-hydroxy-4-aminophenoxyethanol, 5-amino-4-chloro-2-methylphenol,5-(2-hydroxyethyl)-amino-2-methylphenol, 2,4-dichloro-3-aminophenol,2-aminophenol, 3-phenylene-diamine, 2-(2,4-diaminophenoxy)ethanol,1,3-bis(2,4-diaminophenoxy)propane,1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene,1,3-bis(2,4-diaminophenyl)propane,2,6-bis(2′-hydroxyethylamino)-1-methylbenzene,2-({3-[(2-hydroxyethyl)amino]-4-methoxy-5-methylphenyl}amino)ethanol,2-({3-[(2-hydroxyethyl)amino}-2-methoxy-5-methylphenyl]amino)ethanol,2-({3-[(2-hydroxyethyl)amino]-4,5-dimethylphenyl}amino)ethanol,2-[3-morpholin-4-ylphenyl)amino]ethanol,3-amino-4-(2-methoxy-ethoxy)-5-methylphenylamine,1-amino-3-bis-(2-hydroxyethyl)aminobenzene, resorcinol,2-methylresorcinol, 4-chlororesorcinol, 1,2,4-trihydroxybenzene,2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine,2,6-dihydroxy-3,4-dimethylpyridine, 3,5-diamino-2,6-dimethoxypyridine,1-phenyl-3-methylpyrazol-5-one, 1-naphthol, 1,5-dihydroxy-naphthalene,2,7-dihydroxynaphthalene, 1,7-dihydroxynaphthalene,1,8-dihydroxy-naphthalene, 4-hydroxyindole, 6-hydroxyindole,7-hydroxyindole, 4-hydroxyindoline, 6-hydroxyindoline, 7-hydroxyindolineor mixtures of these compounds or their physiologically acceptablesalts.

In addition, the composition (B) may also contain one or more directdyes. Suitable non-ionic direct dyes may be selected from the group HCYellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, HC Yellow 12, HC Orange1, Disperse Orange 3, HC Red 1, HC Red 3, HC Red 7, HC Red 10, HC Red11, HC Red 13, HC Red BN, HC Blue 2, HC Blue 11, HC Blue 12, DisperseBlue 3, HC Violet 1, Disperse Violet 1, Disperse Violet 4, DisperseBlack 9, 1,4-diamino-2-nitrobenzene, 2-amino-4-nitrophenol,1,4-bis(2-hydroxyethyl)-amino-2-nitrobenzene,3-nitro-4-(2-hydroxyethyl)aminophenol,2-(2-hydroxyethyl)amino-4,6-dinitro-phenol,4-[(2-hydroxyethyl)amino]-3-nitro-1-methylbenzene,1-amino-4-(2-hydroxyethyl)amino-5-chloro-2-nitrobenzene,4-amino-3-nitrophenol, 1-(2′-ureidoethyl)amino-4-nitrobenzene,2-[(4-amino-2-nitrophenyl)amino]benzoic acid,4-[(3-hydroxypropyl)amino]-3-nitrophenol, 4-nitro-o-phenylenediamine,6-nitro-1,2,3,4-tetrahydroquinone, 2-hydroxy-1,4-naphthoquinone,picramine acid and its salts, 2-amino-6-chloro-4-nitrophenol,4-ethylamino-3-nitrobenzoic acid and2-chloro-6-ethylamino-4-nitrophenol.

Suitable anionic direct dyes may be selected from the group includingAcid Yellow 1, Yellow 10, Acid Yellow 23, Acid Yellow 36, Acid Orange 7,Acid Red 33, Acid Red 52, Pigment Red 57:1, Acid Blue 7, Acid Green 50,Acid Violet 43, Acid Black 1, Acid Black 52, Bromophenol Blue andTetrabromophenol Blue.

Suitable cationic direct dyes are cationic triphenylmethane dyes, suchas Basic Blue 7, Basic Blue 26, Basic Violet 2 and Basic Violet 14,aromatic systems substituted with a quaternary nitrogen group, such asBasic Yellow 57, Basic Red 76, Basic Blue 99, Basic Brown 16 and BasicBrown 17, cationic anthraquinone dyes, such as HC Blue 16 (Bluequat B),and direct dyes containing a heterocycle containing at least onequaternary nitrogen atom, in particular Basic Yellow 87, Basic Orange 31and Basic Red 51. The cationic direct dyes marketed under the trademarkArianor are also suitable cationic direct dyes as contemplated herein.

Dyeing processes on keratinous fibers are usually carried out in analkaline environment. In order to protect the keratinous fibers and alsothe skin as much as possible, however, the adjustment of a too high pHvalue is not desirable. Therefore, it is preferable if the pH value ofagent (B) is between about 7 and about 11, especially between about 8and about 10.5. For the purposes of the present disclosure, the pHvalues are pH values measured at a temperature of 22° C.

Composition (B) may contain at least one alkalizing agent. Thealkalizing agents usable for adjusting the preferred pH value ascontemplated herein may be selected from the group formed by ammonia,alkanolamines, basic amino acids, and inorganic alkalizing agents suchas (earth) alkali metal hydroxides, (earth) alkali metal metasilicates,(earth) alkali metal phosphates and (earth) alkali metal hydrogenphosphates. Preferred inorganic alkalizing agents are magnesiumcarbonate, sodium hydroxide, potassium hydroxide, sodium silicate andsodium metasilicate. Organic alkalizing agents which can be used ascontemplated herein are preferably selected from monoethanolamine,2-amino-2-methyl-propanol and triethanolamine. The basic amino acidsusable as alkalizing agents as contemplated herein are preferablyselected from the group formed from arginine, lysine, ornithine andhistidine, especially preferably arginine. However, in the course of theinvestigations into the present disclosure, it was found that furtheragents preferred as contemplated herein are exemplified by the fact thatthey additionally contain an organic alkalizing agent. An embodiment ofthe first agent as contemplated herein additionally contains at leastone alkalizing agent selected from the group formed by ammonia,alkanolamines and basic amino acids, in particular ammonia,monoethanolamine and arginine or its compatible salts.

Composition (B) may further contain additional active ingredients,auxiliary substances and additives. For example, one or more fatcomponents from the group of C₁₂-C₃₀ fatty alcohols, C₁₂-C₃₀ fatty acidtriglycerides, C₁₂-C₃₀ fatty acid monoglycerides, C₁₂-C₃₀ fatty aciddiglycerides and/or hydrocarbons may be included.

Preferably, a surface-active substance may be added to composition (B),whereby such surface-active substances are referred to as surfactants oremulsifiers, depending on the area of application: they are preferablyselected from anionic, zwitterionic, amphoteric and non-ionicsurfactants and emulsifiers.

Composition (B) preferably contains at least one anionic surfactant.Preferred anionic surfactants are fatty acides, alkyl sulfates, alkylether sulfates and ether carbon acids with 10 to 20 carbon atoms in thealkyl group and up to 16 glycol ether groups in the molecule.

Furthermore, composition (B) may additionally contain at least onezwitterionic surfactant. Preferred zwitterionic surfactants arebetaines, N-alkyl-N,N-dimethylammonium-glycinate,N-acyl-aminopropyl-N,N-dimethylammoniumglycinate, and2-alkyl-3-carboxymethyl-3-hydroxyethyl-imidazolines. A preferredzwitterionic surfactant is known under the INCI designationCocamidopropyl Betaine.

Furthermore, it may be intended that the composition (B) contains atleast one amphoteric surfactant. Preferred amphoteric surfactants areN-alkylglycine, N-alkylpropionic acid, N-alkyl-aminobutter acid,N-alkyliminodipropionic acid, N-hydroxyethyl-N-alkylamidopropylglycine,N-alkyltaurine, N-alkylsarcosine, 2-alkylaminopropionic acid andalkylaminoacetic acid. Particularly preferred amphoteric surfactants areN-coconut alkylaminopropionate, as coconut acylaminoethylaminopropionate and C₁₂-C₁₅ acyl sarcosine.

Furthermore, it has proven to be advantageous if the composition (B)contains further, non-ionic surface-active substances. Preferrednon-ionic surfactants are alkylpolyglycoside and alkylene oxide plantproducts on fatty alcohols and fatty acids with 2 to 30 moles ofethylene oxide per mole of fatty alcohol or fatty acid. Compositionswith outstanding properties are also obtained if they contain fatty acidesters of ethoxylated glycerol as non-ionic surfactants.

The non-ionic, zwitterionic or amphoteric surfactants are used inproportions of from about 0.1 to about 45% by weight, preferably fromabout 1 to about 30% by weight and particularly preferably from about 1to about 15% by weight, based on the total weight of the composition(B).

Composition (B) may also contain at least one thickening agent. Thereare no restrictions in principle with regard to these thickening agents.Both organic and purely inorganic thickening agents may be used.Suitable thickening agents are anionic, synthetic polymers, cationic,synthetic polymers, naturally occurring thickening agents such asnon-ionic guar gums, scleroglucan gums or xanthane gums, gum arabicum,ghatti gum, karaya gum, tragacanth gum, carrageenan gum, agar-agar,carob bean gum, pectins, alginates, starch fractions and derivativessuch as amylose, amylo-pectin and dextrine, as well as cellulosederivatives such as methyl cellulose, carboxyalkyl celluloses andhydroxyalkyl celluloses, non-ionic, fully synthetic polymers such aspolyvinyl alcohol or polyvinyl pyrrolidinone as well as inorganicthickening agents, in particular phyllosilicates such as bentonite,especially smectites such as montmorillonite or hectorite.

Furthermore, composition (B) may contain other active ingredients,auxiliary substances and additives, such as non-ionic polymers such asvinyl pyrrolidine/vinyl acrylate copolymers, polyvinylpyrrolidinone,vinylpyrrolidine/vinyl acetate copolymers, polyethylene glycols andpoly-siloxanes; additional silicones such as volatile or non-volatile,straight-chain, branched or cyclic, crosslinked or non-crosslinkedpolyalkylsiloxanes (such as dimethicones or cyclomethicones),polyarylsiloxanes and/or polyalkylarylsiloxanes, in particularpolysiloxanes with organo-functional groups, such as substituted orunsubstituted amines (amodimethicones), carboxyl, alkoxy and/or hydroxylgroups (dimethicone copolyols), linearpolysiloxane(A)-polyoxyalkylene(B) block copolymers, grafted siliconepolymers; cationic polymers such as quaternized cellulose ethers,polysiloxanes with quaternary groups, dimethyldiallylammonium chloridepolymers, acrylamidedimethyldiallylammonium chloride copolymers,dimethylaminoethyl methacrylate-vinylate vinyl pyrrolidinone copolymersquaternized with diethyl sulfate, vinyl pyrrolidinone-imidazoliummethochloride copolymers and quaternized polyvinyl alcohol; zwitterionicand amphoteric polymers; anionic polymers such as, for example,polyacrylacids or cross-linked polyacrylics; structurants such asglucose, maleic acid and lactic acid, hair-conditioning compounds suchas phospholipids, for example lecithin and cephalins; perfume oils,dimethyl isosorbide and cyclodextrins; fiber structure-improving activesubstances, in particular mono-, di- and oligo-saccharides such asglucose, galactose, fructose, fructose and lactose; dyes for colouringthe composition; anti-dandruff active substances such as piroctoneolamines, zinc omadine and climbazole; amino acids and oligopeptides;animal and/or vegetable-based protein hydrolysates, as well as in theform of their fatty acid condensation products or optionally anionicallyor cationically modified derivatives; fatty substances and vegetableoils; sunscreens and UV blockers; active ingredients such as panthenol,panthenic acid, pantolactone, allantoin, pyrrolidinone-carbon acid andits salts, and bisabolol; polyphenols, in particular hydroxyzine acids,6,7-dihydroxycoumarins, hydroxybenzoic acids, catechins, tannins,leucoanthocyanidins, anthocyanidins, flavanones, flavones and flavonols;ceramides or pseudoceramides; vitamins, provitamins and vitaminprecursors; plant extracts; fats and waxes such as fatty alcohols,beeswax, montan wax and paraffins; swelling and penetrating agents suchas glycerine, propylene glycol monoethyl ether, carbonates, hydrogencarbonates, guanidines, ureas as well as primary, secondary and tertiaryphosphates; anti-caking agents such as latex, styrene/PVP andstyrene/acrylamide copolymers; pearlescent agents such as ethyleneglycol mono- and distearate as well as PEG-3 distearate and pigments.

The selection of these additional substances will be made by the expertaccording to the desired properties of the composition (B) as well asthe product as contemplated herein. With regard to further optionalcomponents and the quantities of these components used, explicitreference is made to the relevant handbooks known to the expert. Theadditional active ingredients and auxiliary substances are preferablyused in the composition (B) in quantities of from about 0.0001 to about25% by weight each, in particular from about 0.0005 to about 15% byweight, in each case based on the total weight of the composition (B).

The following examples explain the present disclosure without limitingit:

EXAMPLES

A 100 nm thick layer of aluminum was vapor-deposited onto a film layerof biaxially oriented polypropylene with a thickness of 12 μm(micrometres). The aluminum layer was then painted over with approx. 3g/m² of ORMOCER polymer and cured. A 70 μm (micrometer) thick layer ofpolyethylene was then applied to the ORMOCER layer. A packaging (VP) wasproduced from the film. The film is also provided with a PET layer 20 μmthick.

The following cosmetic compositions (KM) were used (all figures in % byweight).

Ingredients KM Potassium hydroxide (50%)) 0.15 Sodium benzoate 0.04Disodium pyrophosphate 0.1 Dipicolin acid 0.031-hydroxyethan-1,1-diphosphonacid (60% ig) 0.31 Oxidizing agent ¹⁾ 11.9C₈-C₃₀ alcohol ²⁾ 1.7 Anionic surfactant ³⁾ 0.18 Non-ionic surfactant ⁴⁾0.33 Water ad 100 ¹⁾ Preferably hydrogen peroxide, calculated to 100%H₂O₂ ²⁾ Preferably a mixture of linear C₁₄-C₁₈ alcohols, especiallycetearyl alcohol ³⁾ Preferably a sodium salt of C₁₆-C₁₈ alkysulfates,especially sodium cetaryl sulfate ⁴⁾ Preferably attachment products of40 mol ethylene oxide to hydrogenated castor oil, particularly PEG-40hydrogenated Castor Oil oder Emulgin RO 40

Furthermore, the following cosmetic compositions (KM) were used (allfigures in % by weight).

Ingredients KM Potassium hydroxide (50%)) 0.24 Sodium benzoate 0.04Disodium pyrophosphate 0.1 Dipicolin acid 0.11-hydroxyethan-1,1-diphosphonacid (60% ig) 0.31 Oxidizing agent ¹⁾ 11.9C₈-C₃₀ alcohol ²⁾ 1.7 Anionic surfactant ³⁾ 0.18 Non-ionic surfactant ⁴⁾0.33 Water ad 100 ¹⁾ Preferably hydrogen peroxide, calculated to 100%H₂O₂ ²⁾ Preferably a mixture of linear C₁₄-C₁₈ alcohols, especiallycetearyl alcohol ³⁾ Preferably a sodium salt of C₁₆-C₁₈ alkysulfates,especially sodium cetaryl sulfate ⁴⁾ Preferably attachment products of40 mol ethylene oxide to hydrogenated castor oil, particularly PEG-40hydrogenated Castor Oil oder Emulgin RO 40

The cosmetic composition KM was filled into the previously describedpackaging (VP). Then the packagings were stored at 40° C. for 24 weeks.The packagings were not inflated or delaminated.

While at least one exemplary embodiment has been presented in theforegoing detailed description, it should be appreciated that a vastnumber of variations exist. It should also be appreciated that theexemplary embodiment or exemplary embodiments are only examples, and arenot intended to limit the scope, applicability, or configuration of thevarious embodiments in any way. Rather, the foregoing detaileddescription will provide those skilled in the art with a convenient roadmap for implementing an exemplary embodiment as contemplated herein. Itbeing understood that various changes may be made in the function andarrangement of elements described in an exemplary embodiment withoutdeparting from the scope of the various embodiments as set forth in theappended claims.

The invention claimed is:
 1. A cosmetic product for modifying thenatural color of keratinous fibers comprising (i) a packaging comprisinga multi-layer film, wherein the multi-layer film comprises a firstpolymer layer, a second polymer layer and a barrier layer, and (ii) acosmetic composition packaged in the packaging and comprising: a) anoxidizing compound, b) a C₈-C₃₀ alcohol, c) an anionic surfactant and d)a non-ionic surfactant wherein the first polymer layer is formed ofpolyethylene terephthalate or polyethylene naphthalate; the secondpolymer layer is formed of a polyolefin; and the barrier layer is formedof metallized oriented polypropylene.
 2. The cosmetic product accordingto claim 1, wherein the first polymer layer has a layer thickness offrom about 4 μm to about 50 μm; the second polymer layer has a layerthickness of from about 20 μm to about 150 μm; and the layer thicknessof the barrier layer is from about 4 μm to about 20 μm.
 3. The cosmeticproduct according to claim 1, wherein the multi-layer film has an oxygentransmission rate at about 23° C. and about 50% relative humidity offrom about 0.1 to about 5 cc/m²/d/bar, and a water vapor permeability atabout 38° C. and about 100% relative humidity of from about 0.1 to about5 g/m²d.
 4. The cosmetic product according to claim 1, wherein themulti-layer film has an adhesive strength of from about 0.1 to about 10N/15 mm; and/or wherein the multi-layer film has a seal strength of fromabout 10 to about 40 N/15 mm under the conditions of about 150° C.,about 2.54 cm (1″) and about 4 kg/cm².
 5. The cosmetic product accordingto claim 1, wherein the multi-layer film comprises the barrier layerbetween the first polymer layer and the second polymer layer; andwherein the first polymer layer forms an outer layer of the packaging.6. The cosmetic product according to claim 1, wherein the cosmeticcomposition has a pH value (measured at about 20° C.) of between aboutpH 1.5 and about pH 5.0.
 7. The cosmetic product according to claim 1,wherein the cosmetic composition comprises the oxidizing compound in atotal amount of from about 0.5 to about 20% by weight, relative to atotal weight of the cosmetic composition.
 8. The cosmetic productaccording to claim 1, wherein the cosmetic composition comprises theC₈-C₃₀ alcohol in a total amount of from about 0.5 to about 8% byweight, based on a total weight of the cosmetic composition.
 9. Thecosmetic product according to claim 1, wherein the cosmetic compositioncomprises the non-ionic surfactant in a total amount of from about 0.1to about 4% by weight, relative to a total weight of the cosmeticcomposition (KM).
 10. The cosmetic product according to claim 1, whereinthe cosmetic composition comprises the anionic surfactant in a totalamount of from about 0.1 to about 7% by weight, relative to a totalweight of the cosmetic composition (KM).
 11. The cosmetic productaccording to claim 1, wherein the cosmetic composition comprises theoxidizing compound in a total amount of from about 1.0 to about 18% byweight, based on a total weight of the cosmetic composition.
 12. Thecosmetic product according to claim 1, wherein the cosmetic compositioncomprises the oxidizing compound in a total amount of from about 1.2 toabout 16% by weight, based on a total weight of the cosmeticcomposition.
 13. The cosmetic product according to claim 1, wherein thecosmetic composition comprises the oxidizing compound in a total amountof from about 1.5 to about 15% by weight, based on a total weight of thecosmetic composition, and wherein the oxidizing compound compriseshydrogen peroxide.
 14. The cosmetic product according to claim 1,wherein the cosmetic composition comprises the C₈-C₃₀ alcohol in a totalamount of from about 1.0 to about 6% by weight, based on a total weightof the cosmetic composition.
 15. The cosmetic product according to claim1, wherein the cosmetic composition comprises the C₈-C₃₀ alcohol in atotal amount of from about 1.5 to about 4% by weight, based on a totalweight of the cosmetic composition, and wherein the C₈-C₃₀ alcohol is amixture of linear C₁₄-C₁₈ alcohols.
 16. The cosmetic product accordingto claim 1, wherein the first polymer layer has a layer thickness offrom about 6 μm to about 20 μm; the second polymer layer has a layerthickness of from about 40 μm to about 90 μm; and the layer thickness ofthe barrier layer is from about 6 μm to about 15 μm.
 17. The cosmeticproduct according to claim 1, wherein the cosmetic composition comprisesthe non-ionic surfactant in a total amount of from about 0.15 to about2.5% by weight, based on a total weight of the cosmetic composition. 18.The cosmetic product according to claim 1, wherein the cosmeticcomposition comprises the non-ionic surfactant in a total amount of fromabout 0.2 to about 2% by weight, based on a total weight of the cosmeticcomposition, and wherein the non-ionic surfactant comprises attachmentproducts of 40 mols of ethylene oxide to hydrogenated castor oil. 19.The cosmetic product according to claim 1, wherein the cosmeticcomposition comprises the anionic surfactant in a total amount of fromabout 0.10 to about 4.0% by weight, based on a total weight of thecosmetic composition.
 20. The cosmetic product according to claim 1,wherein the cosmetic composition comprises anionic surfactant in a totalamount of from about 0.10 to about 3.5% by weight, based on a totalweight of the cosmetic composition, and wherein the anionic surfactantcomprises sodium salts of C₁₄-C₁₈ alkyl sulfates.